Flying skirt action

We all remember the scene when Marilyn Monroe's skirt flew up when she walked across a subway grate in the movie "The Seven Year Itch," and this was "re-created" in a pedestrian zone to promote a new Marilyn Monroe DVD collection. It is amazing though that so many women seem to be surprised by the sudden exposure for this ambient marketing activity. Surely enough that air vent / subway grate isn't brand new in this part of town.